Results 81 to 90 of about 1,271,305 (362)

Scroll-wave dynamics in the presence of ionic and conduction inhomogeneities in an anatomically realistic mathematical model for the pig heart [PDF]

open access: yes, 2016
Nonlinear waves of the reaction-diffusion (RD) type occur in many biophysical systems, including the heart, where they initiate cardiac contraction. Such waves can form vortices called scroll waves, which result in the onset of life-threatening cardiac arrhythmias. The dynamics of scroll waves is affected by the presence of inhomogeneities, which, in a
arxiv   +1 more source

Do All Children with Congenital Complete Atrioventricular Block Require Permanent Pacing ? [PDF]

open access: yes, 2003
With an incidence of 1 in 20’000 live born infants1, congenital complete atrioventricular block (CCAVB) is a rare disease. The aetiology is not completely understood.
Balmer, Christian, Bauersfeld, Urs
core   +1 more source

HCN4 Dynamically Marks the First Heart Field and Conduction System Precursors

open access: yesCirculation Research, 2013
Rationale: To date, there has been no specific marker of the first heart field to facilitate understanding of contributions of the first heart field to cardiac lineages.
Xingqun Liang   +9 more
semanticscholar   +1 more source

Beyond digital twins: the role of foundation models in enhancing the interpretability of multiomics modalities in precision medicine

open access: yesFEBS Open Bio, EarlyView.
This review highlights how foundation models enhance predictive healthcare by integrating advanced digital twin modeling with multiomics and biomedical data. This approach supports disease management, risk assessment, and personalized medicine, with the goal of optimizing health outcomes through adaptive, interpretable digital simulations, accessible ...
Sakhaa Alsaedi   +2 more
wiley   +1 more source

Anatomic-electrophysiological correlations concerning the pathways for atrioventricular conduction. [PDF]

open access: yes, 2001
The remarkable success of radiofrequency ablation in recent decades in curing atrioventricular nodal reentrant tachycardias has intensified efforts to provide a solid theoretical basis for understanding the mechanisms of atrioventricular transmission ...
Anderson, RH, Ho, SY, Mazgalev, TN
core   +1 more source

Acacetin reduces endoplasmic reticulum stress through the P‐eNOS/PERK signaling pathway to attenuate MGO‐induced vascular endothelial cell dysfunction

open access: yesFEBS Open Bio, EarlyView.
We investigated a potential protective effect of acacetin, a naturally occurring flavonoid, against methylglyoxal (MGO)‐induced endothelial dysfunction in human umbilical vein endothelial cells and its mechanism of action. Acacetin can could inhibit MGO‐induced intracellular calcium ion influx, enhance the expression levels of phosphorylated ...
Zhen Zhang   +7 more
wiley   +1 more source

Two dimensional electrophysiological characterization of human pluripotent stem cell-derived cardiomyocyte system. [PDF]

open access: yes, 2017
Stem cell-derived cardiomyocytes provide a promising tool for human developmental biology, regenerative therapies, disease modeling, and drug discovery.
Gimzewski, James K   +7 more
core   +2 more sources

Characterisation of the role played by ELMO1, GPR141 and the intergenic polymorphism rs918980 in Fuchs' dystrophy in the Indian population

open access: yesFEBS Open Bio, EarlyView.
This study reports the upregulation of ELMO1 and GPR141 in human Fuchs' endothelial corneal dystrophy (FECD) corneal endothelium and ultraviolet A‐induced FECD mice model. A genetic association of an intergenic single nucleotide polymorphism rs918980 present between both genes is observed with FECD in the Indian population.
Susmita Sharma   +3 more
wiley   +1 more source

The Role of Notch Signaling on Heart Rate and Atrial Conduction [PDF]

open access: yes, 2016
Heart disease is the leading cause of death worldwide and can result in arrhythmias, or dysregulation in the electrical activation of the heart. Sick Sinus Syndrome (SSS) is characterized by sinus bradycardia (slowed heart rate, HR), slowed conduction ...
Bhatnagar, Somya
core   +1 more source

Transcriptomic Profiling of the Developing Cardiac Conduction System at Single-Cell Resolution.

open access: yesCirculation Research, 2019
RATIONALE The cardiac conduction system (CCS) consists of distinct components including the sinoatrial node (SAN), atrioventricular node (AVN), His bundle, bundle branches (BB) and Purkinje fibers (PF).
W. Goodyer   +12 more
semanticscholar   +1 more source

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